Node Authentication and Node Operation Methods Within Service and Access Networks in Ngn Environment

1. A method for bundle authentication in a service call session control functional entity (S-CSC-FE) of an SC entity in a network including an NAC entity and the SC entity, the method comprising: receiving an SIP register message to which first authentication information is added; transmitting by a processor an authentication request message to an SUP-FE; receiving a response message including second authentication information from the SUP-FE; and performing authentication by comparing the first authentication information with the second authentication information, if the authentication succeeds, transmitting its own information to the SUP-FE, and wherein the transmitting of its own information comprises transmitting its own information by using a server assignment request (SAR) message.

2. The method of claim 1 , wherein the transmitting of the authentication request message comprises transmitting a multimedia authentication (MMA) request message.

3. The method of claim 1 , further comprising, if the authentication succeeds, transmitting a response message to a terminal.

4. A method for bundle authentication in an SUP-FE of an SC entity in a network including an NAC entity and the SC entity, the method comprising: receiving an authentication request message from an S-CSC-FE of the SC entity; and transmitting by a processor a response message including authentication information to the S-CSC-FE, and wherein the SUP-FE of the SC entity in the network, which included the NAC entity and the SC entity, is performed wired or wirelessly, if authentication in the S-CSC-FE succeeds, receiving information of the S-CSC-FE from the S-CSC-FE, wherein the receiving of the information of the S-CSC-FE comprises receiving information of the S-CSC-FE by using an SAR message.

5. The method of claim 4 , further comprising, before the receiving of the authentication request message, receiving subscriber identification information and authentication information from the NAC entity.

6. A method for bundle authentication in a service call session control functional entity (S-CSC-FE) of an SC entity in a network including an NAC entity and the SC entity, the method comprising: receiving an SIP register message to which first authentication information is added; transmitting by a processor an authentication request message to an SUP-FE; receiving a response message including second authentication information from the SUP-FE; and performing authentication by comparing the first authentication information with the second authentication information, and wherein the S-CSC-FE of the SC entity in the network is performed wired or wirelessly.